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An ordered pair is a simple way of keeping track of two numbers by writing them in a specific order. Learn about ordered pairs and how they are useful. Calculus: Tutoring Solution / Math Courses
Then we track down the wise guy who gave us this bogus map in the first place. The first number in an ordered pair tells us how far to go left or right on the x-axis (horizontal number line), and the second number in the ordered pair tells us how far to go up or down on the y-axis (vertical number line). Since x comes before y in the alphabet, x goes with the first number and y goes with the second number. These numbers are called coordinates. They coordinate with one another to arrive at a certain spot on the graph. The first number in an ordered pair is the x-coordinate and the second number is the y-coordinate. The dot we draw to represent the ordered pair is called a point. You can look at a point, but don't point at it. That's rude.